| Standard label: | Common Stock, Shares Authorized, Unlimited [Fixed List] | 
| Name: | us-gaap:CommonStockSharesAuthorizedUnlimited | 
| Documentation: | Indicates that the number of common shares permitted to be issued by an entity's charter and bylaws is unlimited. The acceptable value is "Unlimited". | 
| Object type: | cm:Concept | 
| Data type: | us-types:authorizedUnlimitedItemType | 
| Period type: | For Period (duration) | 
| Balance type: | (no balance type) | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:CommonStockSharesAuthorizedUnlimited | 
| Label | Role | Language | 
| Common Stock, Shares Authorized, Unlimited [Fixed List] | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02.29) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |